Take the Quiz - Timed General Knowledge Challenge | GK Mania

1 Who discovered penicillin?

A) Alexander Fleming

B) Joseph Lister

C) Robert Koch

D) Louis Pasteur

2 What is the critical angle for water approximately?

A) 38.0°

B) 42.0°

C) 48.6°

D) 54.0°

3 What instrument measures air humidity?

A) Voltmeter

B) Barometer

C) Hygrometer

D) Ammeter

4 Who developed the first successful heart transplant?

A) Christiaan Barnard

B) Norman Shumway

C) Denton Cooley

D) Michael DeBakey

5 Which does not belong: Proton, Neutron, Electron, Molecule?

A) Neutron

B) Molecule

C) Electron

D) Proton

6 What is the density of water at 4°C?

A) 998 kg/m³

B) 997 kg/m³

C) 1,000 kg/m³

D) 1,025 kg/m³

7 What color is pure sulfur?

A) Red

B) Blue

C) White

D) Yellow

8 What is the Nernst equation about?

A) Electrode

B) Gas pressure

C) Sound speed

D) Light color

9 Which subatomic particle was discovered by James Chadwick in 1932?

A) Proton

B) Electron

C) Positron

D) Neutron

10 Who is credited with inventing the World Wide Web?

A) Tim Berners-Lee

B) Mark Zuckerberg

C) Steve Jobs

D) Bill Gates

11 What is the pH of blood approximately?

A) 6.8

B) 7.4

C) 8.0

D) 7.0

12 What is H₂O commonly known as?

A) Salt

B) Acid

C) Water

D) Sugar

13 What is the boiling point of helium?

A) −183°C

B) −196°C

C) −253°C

D) −269°C

14 What temperature in Celsius is absolute zero?

A) −100.00°C

B) −459.67°C

C) −273.15°C

D) −373.15°C

15 What state of matter is steam?

A) Solid

B) Plasma

C) Gas

D) Liquid

Quiz